Gear shift



April 7, 1925. l 1,532,314

H.`rc. JoHLE i I GEAR SHIFT FilednSept. 9, 1924 4 Sheets-'Sheet l (ijn/vento@ April 7, 1925. Y*1,532,314

H. c. JOHLE GEAR SHIFT r Filed Sept. 9, 1924 l 4 Sheets-Sheet 2 55 ZZ 5 f Z a Y f/y'efmed/W a u 02x 5 45 1 7 l ZH 22 2%, o L o l5 52113 l5 a Il 2 gnou/tto@ 25 27 26 gewag@ @In H. c. Jol-ILE GEAR SHIFT Filed sept. 9, 1924v 4 sheets-sheet s April 7, 1925. i 1,532,314

H. C. JOHLE GEAR SHIIFT `Fi1ed sept. 9, 1924 4 sheets-sheet 4 lllklllllllllllll Patented Apr. 7, 1925..

V UNITED STATES HENRY CARL JOHLE, OF TEMPLE, TEXAS.

GEAR SHIFT.

Application led September 9, 1924. Serial Nb. 236,781.

To all whom 'it may concern:

Be it known that I, HENRY C. JOHLE, a citizen of the United States, residing at Temple, in the county of Bell and State of Texas, have invented a new and useful Gear Shift, of which the following is a specication.

This invention relates to a device defv signed for shifting the ears of the transmission of a motor vehic e, the primary ob- -"ject of the invention being to provide means whereby the operator ma shift the gears from a point adjacent to t e steering wheel, thereby eliminating the necessity of the operator leaning overvor removing his hands from the steering wheel to accomplish the shifting of the gears.

Another important object of the invention is to increase the foot room adjacent to the drivers seat, by eliminating the usual long i gear shift lever which usually extends upwardly through the floor board of a motor vehicle.

A further object of the invention is to provide av device of this character which may be readily and easily operated with the minimum amount of exertion on the part of the operator. i

A still further object of the invention is the provision of a device of this character which may be readily and easily applied by removing the usual transmission housing cover, and substituting a cover supplied with the operating mechanism embodied in this invention.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed,pmay be made within the scope of what is claimed, without departing from the spirit of the invention. i

Referring to the drawings:

Figure 1 is aside elevational view disclosing the application of thegear shifting device constituting the present invention.

. Figure 2 is a vertical sectional View4 the gear shift forks.

through a4 transmision supplied with a shifting device constructed in accordance with the invention.

Figure 3 is a sectional View taken on line 3 3 of Figure 2.

Figure 4. is a sectional view taken on line Figure 5 is a sectional view takenon line 5-5 of Figure 2. v

Figure 6 is a sectional view taken on line 6 6 of Figure 2.

Figure 7 is a perspective view disclosing the guide plate for the threaded heads of the gear shift forks.

Figure 8 is a perspective view of one of Figure 9 is a longitudinal sectional view through steering column disclosing the operating rods.

Figure 10 is a sectional view taken on line 10-10 of Figure 9.

Figure 11 is a plan view of a steering wheel equipped with the'operating device.

Figure 12 is an elevational view of the selecting segment in which the controlling lever operates.

Figure 13 illustrates the head of the opy erating members in elevation.

Referring to the drawings in detail, the reference character 5 indicates the transmission housing of the usual motor vehicle and the reference character 6 indicates the cover of the transmission, the cover in the presentshowing being of a novel construction to support the shafts and gearing forming the essence of the present invention.

Operating in the transmision housing 5 is the drive shaft' 7 and counter shaft 8, the counter shaft 8 supporting the usual low speed gear 9, intermediate speed gear 10 vand reverse speed gear 11, the power of the a right angledextremity 26 which is apertured to accommodate one end of the link 27, the opposite end of the link 27 being positioned in. a suitable opening formed in the right angled end 28 of the rod 29. As shown, this rod 29 is connected with the rod 30 that extends upwardly through the steering column and carries the extension 31 at its upper end, which extension is forme-i with a cut out portion 32 Meshing with the pinion 22 is a beveled pinion 33 which is carried at the inner end of the shaft 34 formed ywith a right angle extremity 35, which is also provided with an opening to accommodate the right angled end 36 of the controlling rod 37, which controlling rod 37 connects with the sleeve 38 provided with an extension 39 and which is formed with a cut out portion 40 for purposes to be hereinafter more fully described.

Positioned between the arms 18 and secured adjacent to the bearings thereof is a guide plate 41, which guide the gear shift forks 42, the gear shift forks 42 being formed with internally threaded heads 43 that move over the worms 2O and 21. Spaced fingers 44 are provided on each of the heads 43, the fingers 44 extending laterally therefrom to embrace portions of the guiding plate and insure a true horizontal movement of the gear shift forks.

At the upper end of the rod 30 is formed a groove 45 which acts,A as a seat for the inner end of the controlling lever 46 that is supported on the rod 30 to move independently thereof. A sector 47v is mounted at the upper end of the rod 30 and is secured into position by means of the nut 48 which forces the central portion 49 of the sector into engagement with the head 50. The

sector 47 is formed with an H-shaped slot in which the controlling lever 46 moves in selecting the gears.

In the operation of the device, the clutch 'pedal of the motor vehicle is thrown out to disengage the clutch, whereupon the lever 46, should it be desired to move the gears to bring low gear into play, the controlling lever 46 is moved to the central portion of the H slot of the sector, thereupon it is moved upwardly or towards the operator'. With this movement of the lever, the lever tilts to a position as shown in dotted lines in Figure .10 andv rests within the notch 32 ofthe extension 31 to carry the rod 30 with it and cause a slightrotary movementthereof, which movement is imparted to the pinion 34 which rotates rotar7 movement to the worm 21 in a direcpinion 23 imparting s tion to cause the gear shift fork 16 to move the pinion 12 into engagement with pinion 9.

It follows that in order to move the remaining gears into play, the lever 46 is moved accordingly to engage the proper extensions v31 or 39 according to the selection to be made.

Due to the foregoing construction, it will be o bvious that I have provided a trans-l the worms, said forks having connecti0n with gears of the transmission, and means for rotating theworms to move the forks for moving the gears.

2. A transmission gearing operating deviceincluding a pair of worms, means for supporting the worms above the gearing of a transmission, gear shift forks mounted on ythe worms and contacting with gears of the controlled transmission, and manually means for moving the worms to cause the gear shift forks to move the gears into and out of operation.

3; A transmission gearing operating mechanism comprising a cover adapted to be supported over the gearing of a transmission, bearings depending from the cover, worms mounted in the bearings, gear shift forks having heads, said heads having threaded openings to accommodate the worms, said gear shift forks having connection with gears of the transmission,y and means for rotating the worms to move the gear shift forks to move the gears of the transmission.

4. A transmission gearing operating device including a pair of worms supported above the gearing of a transmission, gear shift forks having heads formed with threaded openings positioned on the worms, a guide plate disposed between the Worms, spaced fingers formed integral with the heads and adapted to'embrace portions' of the guide plate to prevent rotary movement of the gear shift forks, said gear shift forks having connection with gears of the transmission, and means for rotating the Worms .to move the forks.

5. A transmission gearing operating d'evice including a pair of worms supported above the gearing of a transmission, gear shift forks having heads formed with openrst mentioned beveled pinions, and manuings to accomodate the worms, said` forks In testimony that I claim the foregoing having connection with the gears of the as my own, I have hereto afxed my signa- 10 transmission, 'beveled pinions' mounted on ture in the preseIlCe 0f WO Witnesses the Worms, beveled pinions meshing with the v HENRY CARL J OHLE.

ally controlled means for operating .the i Witnesses:

v latter beveled pinions to rotate the Worms W. F. JOHLE,

for moving the gears. y D. JOHNSON. 

